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(11)

EP 2 438 476 A1

(12)

(43) Date of publication: 11.04.2012 Bulletin 2012/15 (21) Application number: 10727541.4 (22) Date of filing: 28.05.2010

(51) International Patent Classification (IPC):  G02B 1/10(2006.01) G02F 1/1335(2006.01) (86) International application number: PCT/US2010/036547 (87) International publication number: WO 2010/141345 (09.12.2010 Gazette 2010/49)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 02.06.2009 US 183154 P 07.05.2010 US 332231 P (71) Applicant: 3M Innovative Properties Company Saint Paul, MN 55133-3427 (US)

(72) Inventors: WALKER, Christopher B., Jr. Saint Paul, Minnesota 55133-3427 (US) TEBOW, Christopher P. Saint Paul, Minnesota 55133-3427 (US) PHAM, Tri D. Saint Paul, Minnesota 55133-3427 (US) KONG, Steven H. Saint Paul, Minnesota 55133-3427 (US) ARONSON, Joseph T. Saint Paul, Minnesota 55133-3427 (US) LINDSTROM, Kyle J. Saint Paul, Minnesota 55133-3427 (US) GERLACH, Michael K. Saint Paul, Minnesota 55133-3427 (US) TOY, Michelle L. Saint Paul, Minnesota 55133-3427 (US) MCKENZIE, Taun L. Saint Paul, Minnesota 55133-3427 (US) RENSTROM, Anthony M. Saint Paul, Minnesota 55133-3427 (US) JENDOUBI, Slah Saint Paul, Minnesota 55133-3427 (US) JOHNSON, Mitchell A. F. Saint Paul, Minnesota 55133-3427 (US) KAYTOR, Scott R. Saint Paul, Minnesota 55133-3427 (US) YAPEL, Robert A. Saint Paul, Minnesota 55133-3427 (US) ZIGAL, Joseph A. Lago Vista, Texas 78645 (US) MCMAN, Steven J. Saint Paul, Minnesota 55133-3427 (US) SOLOMONSON, Steven D. Saint Paul, Minnesota 55133-3427 (US) LU, Fei Saint Paul, Minnesota 55133-3427 (US) BOYD, Gary T. Saint Paul, Minnesota 55133-3427 (US) (74) Representative: Vossius & Partner  Siebertstrasse 4 81675 München 81675 München (DE)